package com.netty.demo.text.qotm;

import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.DatagramPacket;
import io.netty.channel.socket.nio.NioDatagramChannel;
import io.netty.util.CharsetUtil;

import java.net.InetSocketAddress;

public class QuoteOfTheMomentClient {

    private static final int PORT = 5001;
    private static final String HOST = "127.0.0.1";

    public static void main(String[] args) throws Exception {
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap b = new Bootstrap();
            b.group(group)
                    .channel(NioDatagramChannel.class)
                    .option(ChannelOption.SO_BROADCAST, true)
                    .handler(new QuoteOfTheMomentClientHandler());
            Channel ch = b.bind(0).sync().channel();
            ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("QOTM?", CharsetUtil.UTF_8), new InetSocketAddress(HOST, PORT))).sync();
            if (!ch.closeFuture().await(50000)) {
                System.err.println("QOTM request timed out.");
            }
        }finally {
            group.shutdownGracefully();
        }
    }
}
